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May Weather in Cambridge, United States

Last updated: June 24, 2025

In May, the average temperature in Cambridge, United States is a mild 17°C (64°F), with potential extremes ranging from a brisk -1°C (30°F) to a warm 31°C (89°F). This month sees an average precipitation of 142 mm (5.6 in) spread over 16 days, contributing to a relatively high average humidity of 82%. Prepare for a mix of weather as you enjoy your time in this vibrant locale!

May Temperature in Cambridge

In May in Cambridge, the average temperature is 17°C (64°F), with maximums reaching 31°C (89°F) and minimums dropping as low as -1°C (30°F). This variety in temperature makes it essential to pack for both warm and cool conditions when traveling.

May Weather in Cambridge: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Cambridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cambridge, May typically has an average temperature of 17°C (64°F), with highs reaching up to 31°C (89°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec323543526371757368584337
Data source: Temperature data for Cambridge generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Cambridge

In Cambridge in May, the precipitation amount is 142 mm (5.6 in) distributed over 16 days.

May Precipitation Trends in Cambridge

The chart displays monthly precipitation patterns in Cambridge, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Cambridge, May typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec9111911413414216612110011311098110
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cambridge

In Cambridge in May, humidity is 82%. With an average temperature of 17°C (64°F), this humidity feels like a damp embrace that can make traveling quite uncomfortable, as the sticky air clings to your skin and leaves you yearning for a cool breeze.

May Average Humidity in Cambridge

This chart illustrates the average monthly humidity levels in Cambridge, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Cambridge is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cambridge

In Cambridge in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Cambridge.

Maximum UV Index Levels in Cambridge for May

The chart shows the monthly maximum UV Index (UVI) for Cambridge in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Cambridge typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Cambridge May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Cambridge Compares to Other Months

Weather in Cambridge varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Cambridge, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Cambridge, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)91 mm (3.6 inches)88%moderate
February Weather2°C (36°F)119 mm (4.7 inches)88%moderate
March Weather6°C (43°F)114 mm (4.5 inches)88%high
April Weather11°C (53°F)134 mm (5.3 inches)86%very high
May Weather17°C (64°F)142 mm (5.6 inches)82%very high
June Weather22°C (71°F)166 mm (6.5 inches)84%very high
July Weather24°C (76°F)121 mm (4.8 inches)82%very high
August Weather23°C (74°F)100 mm (4.0 inches)73%very high
September Weather20°C (69°F)112 mm (4.4 inches)73%very high
October Weather14°C (58°F)110 mm (4.3 inches)81%high
November Weather6°C (43°F)98 mm (3.9 inches)89%moderate
December Weather3°C (37°F)110 mm (4.3 inches)86%moderate

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